Boxed suspension arm



FIG. 1 is a top perspective view for a boxed suspension arm showing my new design;

FIG. 2 is a front side view thereof;

FIG. 3 is a back side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top side view thereof;

FIG. 7 is a bottom side view thereof; and,

FIG. 8 is a bottom perspective view. 

CLAIM The ornamental design for a boxed suspension arm, as shown and described. 